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-rw-r--r--lib/argmatch.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/argmatch.c b/lib/argmatch.c
index db883ac41..36d5845ac 100644
--- a/lib/argmatch.c
+++ b/lib/argmatch.c
@@ -20,7 +20,7 @@
/* Written by David MacKenzie <djm@ai.mit.edu>
Modified by Akim Demaille <demaille@inf.enst.fr> */
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
# include <config.h>
#endif